From owner-freebsd-questions Fri Sep 12 05:07:31 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id FAA28348 for questions-outgoing; Fri, 12 Sep 1997 05:07:31 -0700 (PDT) Received: from mercury.ukc.ac.uk (mercury.ukc.ac.uk [129.12.21.10]) by hub.freebsd.org (8.8.7/8.8.7) with SMTP id FAA28334; Fri, 12 Sep 1997 05:07:25 -0700 (PDT) Received: from kestrel.ukc.ac.uk by mercury.ukc.ac.uk with SMTP (PP); Fri, 12 Sep 1997 13:06:38 +0100 Received: from localhost by kestrel.ukc.ac.uk (5.x/UKC-2.14) id AA29697; Fri, 12 Sep 1997 13:06:37 +0100 Date: Fri, 12 Sep 1997 13:06:36 +0100 (BST) From: "K.J.Koster" To: Luigi Rizzo Cc: hackers@freebsd.org, questions@freebsd.org Subject: Re: Do *you* have problems with floppies? In-Reply-To: <199709120935.LAA03134@labinfo.iet.unipi.it> Message-Id: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > > > Wild guess: driver needs to recalibrate every once in a while, so if you > > write a whole floppy at once, it slowly loses calibration. MS-DOS > > `recalibrates' by writing the FAT every block or so. How does that sound? > > I doubt it writes the fat so often, performance would be much worse > than the 30-40K/s we get now... > 30-40kb/s? I wish. 8kb/s is what dd reports for my floppy drive. Oh, and regarding the fdformat in another post in the same thread: when FreeBSD finds an error on one of my floppies, it's dead. MS-DOS' scandisk reports the same errors and cannot fix them. Reformatting the disk does not help, the sectors trashed. Groetjes, Kees Jan ---------------------------------------------------------------v-- Kees Jan Koster tel: UK-1227-453157 e-mail: kjk1@ukc.ac.uk 15 St. Michaels Road, Canterbury, Kent, United Kingdom ------------------------------------------------------------------ from trials come errors... from errors come legends...